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J. A, HOUSE & O.'H-. D IMOND. DEVICE FOR OLAMPING PATTERNS (IN GOODS.

Patented May 1 s 1884.

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llNiTE ATENT Erica,

JAMES ALFORD HOUSE AND CHARLES H. DIMOND, or BRIDGEPORT, conn.

DEVICE FOR CLAMPING PATTERNS ON GOODS.

SPECIFICATION forming part of Letters Patent No. 298,470, dated May 13,1884.

Application filed February 1854. (No model.)

To all whom it may concern.-

Be it known that we, JAMES ALFORD HOUSE and CHARLES H. DIMOND, citizensof the United States, residing at Bridgeport, in the county of Fairfieldand State of Connecticut, have invented certain new and usefulImprovements in Devices for Clamping Patterns to Goods; and we do herebydeclare the following to be a full, clear, and exact description oftheinvention, such as willenable others skilled in the art to which itappertains to make and use the same.

Our invention relates to certain novel and useful improvements indevices for clamping and securing patterns onto goods, and has for itsobject to operate the clamping-bar by the direct manipulation of thelatter, thereby doing away with independent levers and other similarmeans for accomplishing this purpose, and, furthermore, to do away witha presserfoot, and also to provide such a clamping device as shall havea universal and ready adjustment, while at the same time it is simpleand economical in construction; and with these ends in view ourinvention consists in the details of construct-ion and combinationofelements hereinafter fully and in detail explained, and thenspecifically designated by the claims.

In order that those skilled in the art to which our invention appertainsmay more fully understand the same, we willproceed to describe itsconstruction and operation, referring by letter to the accompanyingdrawings, forming a part of this specification, in which- Figure 1 is aperspective showing a pattern clamped onto goods by our improvement, andFig. 2 a central vertical longitudinal section.

Similar letters denote like parts in both figures of the drawings.

A is a hollow rod having an inwardly-projecting flange or shoulder, B.

G is a coil-spring resting on said flange, and immediately on thisspring is a nut, D. This nut is adapted to slide freely within the rod,and is provided with ratchetteeth E, which extend laterally within anelongated slot, F, in said rod for the purpose presently explained, sothat it will be readily understood that when said nut is depressed theaction of the spring will tend to throw it back to its normal position,

G is the clamping-bar,thread ed at its upper extremity and extendedwithin the rod from the bottom thereof, so as to engage with the nut D.By running the bar up within the nut the former is raised from thepattern, and vice versa.

H is an ordinary spring-pawl pivoted to a collet, I, secured on the rod,and whose normal position is in engagement with the ratchet-teeth in thenut.

Instead of turning the bar around until the action of its thread withinthe nut brings the lower extremity of said bar against the pattern, weare enabled to accomplish the same result in less time by simply pullingthe bar down, thereby depressing the nut against the spring. The pawl Hwill engage with the ratchet-teeth on the nut and prevent the bar fromflying back after it has been brought down. When it is desired to removethe pattern from the goods, the bar may either be run back within thenut, or the heel end of the pawl may be depressed and the latter thrownout of engage mentwith the ratchet-teeth, and thereby cause the springto act against the nut and throw the bar up. The rod is pivoted at itsupper extremity to a block or-frame, J, arranged to travel on anysuitable track, K, the relation between said block and rod being suchthat the latter is permitted to swing freely in a direction transverseto the movement of the block for the obvious purpose of bringing theclampingbar into operation at any point of the cuttingtable. 4

The operation of our improvement is as follows: The pattern is placedupon the goods, the latter being arranged in as many thicknesses asdesired for the purpose of cutting duplicate patterns. The clamping-baris now brought into the required position over the pattern and broughtdown firmly upon the latter, as hereinbei'ore set forth. If the lowerextremity of the bar is considerably above the level of the pattern, (asfrequently happens whenever the bar, having been raised to accommodatemany thicknesses of goods, has been left in that position,) instead ofrunning the bar down onto the pattern we simply pull 100 it out andgiveit several turns; but if the lower extremity of the bar is close tothe pattern,then it may not be desirable to pull the bar down, and it istherefore given afew turns, and there may swing it around to manipulatethe cuttingknife more readily.

\Ve do not wish to confine ourselves to the exact method shown ofpivoting the rod to the traveling block, as a ball-and-socket joint maybe used, or any other similar and suitable means employed in thisconnection.

What we claim as new, and desire to secureby Letters Patent, is- I 1. Adevice for clamping patterns onto goods, consisting of a rod adapted tobe adjusted to any Vertical plane, and having interiorly-arrangedtherein a threaded clamping-bar engaging with a nut within said rod,substantially as set forth.

2. A device for clamping patterns to goods, consisting of a rodpivotally attached to a traveling block or frame, and having interior] yarranged therein a threaded clamping-bar adapted to travelinanut,substantially as described.

3. In a device for clamping patterns to goods, a rod pivotally attachedto a traveling block .or frame, and having interiorly arranged therein anut provided with ratchet-teeth and supported in an elevated position bya spring, in combination with a threaded clamping-bar adapted to travelin said nut, and a pawl attached to said rod and adapted to engage withsaid teeth and hold the bar against upward movement, substantially asshown and described.

4. In a device for clamping patterns to goods, the threaded clamping-baradapted to engage with an adjustable nut arranged interior of a rodcapable of being adjusted to any vertical plane,subst-antially as setforth and described.

5. The threaded clamping-bar adapted to engage with a nut in the rod, incombination with means independent of the screw action of the bar forenabling thelatter to be brought down and held upon the pattern, andreturning said bar to its normal position, substantially as specified.

6. The rod A, having shoulder B and elongated slot F, and with nut D andcoil-spring 0, arranged interiorly therein, in combination with thethreaded clamping-bar G, sliding block .T, and pawl H, attached to saidrod and engaging with teeth in said pawl, substantial] y as and for thepurpose set forth.

In testimony whereof we affix our signatures in presence of twowitnesses.

JAMES ALFORD HOUSE. CHARLES H. DIMOND.

Witnesses:

O. S. LEET, S. S. WILLIAMSON.

